Martin Pool <m...@sourcefrog.net> added the comment: > Note, 366 above confirms it's never true for an empty string. The documentation states that \B "is just the opposite of \b" yet re.match(r'\b', '') returns None and so does \B so \B isn't the opposite of \b in all cases.
This is also a bit strange if you follow the Perl line of reasoning of imagining there are non-word characters outside the string. And, indeed, in Perl, "" =~ /\B/ is true. So this patch adds some tests for \b behaviour and some docs. I think possible \B should actually change, but that would be a bigger (perhaps impossible?) change. ---------- keywords: +patch nosy: +poolie Added file: http://bugs.python.org/file22991/20110822-1604-re-docs.diff _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue10713> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
